Electric water-heater.



w. c. WILLIAMS; ELECTRIC WAT-ER HEATER. APPLICATION FILED AUG-I5, I9|5- Patented 5527,1917.

, 2 sums-4min I.

PATENT OFFICE.

STATES To all may camera.

j domestic use, such as may form part of a reference being l v the p yu ratus- Be it known that I, WILLIAM CHARLES WILLIAMs, a citizen of the Dominion of-Ganada, residing-j'at the" city of Winnipeg, in the Province of 'Manitobaj andthe Dominion o f Canada,fhavd'i'nvented' certain new and useful; Im rovements in Electric Water- Heatersfbf wh-iclfth following is a specification. 5"-

My invent'fon relatest'o water heaters for single liiihf prsystem to heat the-water passing theit roagh' in the running stream at such times as-hot water may be required, the heaterf'oontrol being arranged in such manner thatthe' apparatus'may be placed in and outiof operation from any part of the buildiiigin which it may be installed,

so that either"ho't or cold'w'ater may be drawn from the same faucet according to whether the heater is Zin er out of operation.

' The primary-object of'theinyention is to "arrange :theapparara's in accordance with the aboverequiiiementsand so do away with the double piping now ingeneral use in hot and coldf wa ter supply systems. A further object of the 'invention is to so construct the heater properthat'all the parts thereof are easily accessible-r01: repair or renewal.

The means by which these objects are attained will be"fo1 ind fully set out in the following specification and more particu larly pointedoutih the appended claims,

'ing draw ing'swhi'cli form a part hereof and injwhic r characters of reference referj to similii it throughout the difl'erent views, Referringtoftliesei Figure Fig 418a view taken a; r in .Fig. 1 and similar toEig. .v the preferred forinpf iping-thgrei zfg 5 i5 ayiew lf fd li' flb liai and parts of; the heater pertaining} thereto shown in :Fig'. 4; but removed froin conn'ection withall'other partsofthe device.

' Specification of Letters Patent.

U option withpapipp ar f thepiping nLEc'rnIo WATER-HEATER.

Patented Feb. 27, 1917.

" a Application filed August is, 1915. Serial No. 45,721.

Fig. 6 is a plan view of the base showing.

theheating coils therein.

Fig. 7 15 an interior view of thechambers with which the pipes communicate.

Fig. 8 is one of the plates in Which the.

pipes terminate.

Fig. 9 is a separate view of one of the return bend pipes as shown in Fig. 2.

Fig. 10 is a fragment of one of the end plates showing a semi-circular projection which might be placed thereon and around which the bends of the pipes might be made.

The heater proper comprises three principal parts, a base B, water container C and cover D, all of which are .quite distinct and separable from each other.

The part C consists of a pairof heads or plates 1 and 2 spaced apart and rigidly connected by angle iron corner pieces 3 to form a frame, the plates being apertured as at 4 in Fig. 8, to receive the tubes 5 which extend across the space between the plates. -The tubes may be ofa length to reach across between the plates and have a bearing therein as shown in Fig. 4, in which case their ends are expanded in theap'ertures 4 in the usual manner of such connections, to secure a tight joint. The tubes are placed in rows and tier above tier, and there may be as many tubes in a row and as many tiers of tubes as may appear advisable.

Castings 6 and 7 (shown separately in Fig. 7) are shaped to afiord chambers 8 and -Lscparatedby a partition 10, the. chambers h ving a flange 11 all around Provided with agertures 12 adapted' to register with similit'r apertures 13 in the plates 1 and 2 through which bolts 14 may be passed to se cure them together, packing strips 15 being inserted between the meeting parts of the castings and plates'to 'form aQWaterti'ght iQi At therebetween."

It war he iioted'th'at the' castings a e 91a eels-f e a e i f e ire ing'16 in its rear-wan communicat ngfwith thefsinalleif chamber9fthe-iein, the openings [being inteiiiorly screwthreaded connecconnei' tionihetweeh the heater an a suitable v 25 paratus,

source of water supply, while a pipe 18 similarly connected with the chamber 9 in the casting 7 runs from the heater to the various faucets in the building. Thus the water entering the chamber'9 in the casting 6 .from' the pipe 17 passes through-the lower tier of pipes into the chamber 8 in the casting 7, thence back through the center tier of pipes into the chamber 8 in the casting 6, then into the chamber 9 in the casting 7. by way.

vention, it is preferable that the heater be connected into the supply pipe by means of union couplings at each side, and that a bypass be arranged around the heater, with suitable valves, so that the heater may be disconnected from the pipe line at anytime without disturbing the water supply.-

The alternative form of piping shown in Fig. 2 provides the pipes 5 of a length suitable to pass back and forth through the apthe number of times required, the return bends '19 in the pipes taking the place of the chambers 8 in the previously described construction. In this form the end plates 1 and 2 may have projections 20 asshown in Figs. 2 and 10, occupying the space between the tier pipe-openings, around which the return bends 19 of the pipes may be made, the pipes being preferably .of copper and easily bent, and the projections may further be provided with grooves on their peripheries, indicated as 21, to retain the bends in place. The extreme ends of the pipes in this construction,

would be expanded in the plates at their point of communication with the chambers 9 in both the members 6 and 7. I

The portion C of the apparatus is sup ported by thepi we 17 and 18 and a shelf is usually provi ed at a suitable distance below it on which the base B is positioned. The base B it will be noted, is provided with legs 22 and 23 securedthereto by bolts-24 and 25, those 25 being easily removable so that the legs may be turned up as indicated by the dotted lines in connection with the leg 23 in Fig. 3 and .the base thus lowered from its connection with the portion C of I the cover D fits,

i the apparatus.

The base B is in tray form, this consisting of a bottom 26 surrounded by an upwardly projecting flange 27', around which the flange being provided with outwardly projecting studs 28 and the cover'with slots 29 in which the studs engage when the '-cover is placed in position. The cover is further slotted at each end from the bottom upwardly for the reception of the pipes 17 and 18, a pivoted cover '30 (it being provided for the slot 31 pertaining to sheet 32 and connected preferably in series,

their terminals being further connected with the wires 35 and '36.

The wires 35 and 36 run to a double pole switch 37 by means of which they may be connected with the mains 38 and 39 which are in circuit with a source of electric cur-' rent which may be drawn upon to energize the coils 34 thus heating the interior of the apparatus and the water passing through the pipes therein.

To operate the switch 37 an electro-magnet 40 is conveniently placed with reference thereto and the switch blades 41 are provided with an armature 42 positioned to be.

actuated by the magnet when energized to close the main "circuit, and a tension spring 43 is provided to release the blades 41 from the contacts 44 when the magnet 40 is deenergized.

The coil 40 is wired in a circuit which includes a battery 45, the wires 46, 47 and 48 of the battery circuit being carried to the various apartments of the building where water is used and one of the switches 49 provided in the circuit adjacent each faucet. Pilot lamps 50 are also provided in the battery circuit, one at each faucet,'to indicate when the heater is in operation. It will be noted. from the diagram that when any one of the switches 49 is closed all of the pilot lamps will be energized thus indicating in all the apartments that the heater is in operation.

From the foregoing description it will be seen that the heater proper provides in compact form means for heatin in a running stream; that theattery circuit, with. the switches therein, provides means whereby the electro-magnetically'controlled switch 37 may be operated from any part of the building to heat the water; and that by reason of these provisions a person .may draw water of any temperature ranging from cold to very hot, fromany faucet in the building, by merely re dating the flow from the faucet to run reely or to pass through the heater slowly to raise its temperature.

Having thus fully described my said in vention, what I claim is- 1. A heater comprising in combination, a stationary water-tube boiler having outlet connection with a house service by which the flow of watenthrough the boiler is conthe water trolled, a removable base normally in ccutact with the under side of the boiler, a cas ing inclosing the boiler and detachably connected with the base, and electrically operated means in the base to heat the boiler.

2. A heater comprising in combination, a Water tube boiler, a base, means normally supporting the base in contact with the boiler, a casing SUI'lIlOllIltlIlg the base and detachably connected therewith to form with the base a chamber in which the boiler is contained, a plurality of resistance coils in the base, and electro-magnetically operated means by which the coils may be energized to heat the chamber.

3. A heater comprising in. combination a Water-tube boiler having inlet and outlet pipes connected therewith and by which it is supported; a base normally in contact with the boiler and having legs adapted to be turned up toremove the base from contact with the boiler; a casing surmounting the base and detachably connected there heat the boiler.

4. A heater comprising in combination, a suitably supported water-tube boiler, a removable base normally in contact with the boiler, a casing detachably connected with the baseand inclosing the boiler, a plurality of resistance coils arranged in the base, electro-magnetically operated switch v means by which the coilsmay be connected with a source of electrical energy, and electrical means cooperative with. the switch means to indicate at various points when the apparatus is in operation.

In testimony whereof I affix my signature.

WIiiLIAM CHARLES WILLIAMS. 

